This section describes the morning warm-up setpoints and related data, inputs, outputs, and operation.
Setpoints and related data
The setpoints and related data include the following items:
- Morning warm-up enable (MornW-En) is set to On
- Morning warm-up RAT setpoint (MornWRAT-Sp)
- Operational space temperature (OprST)
- Early start period (EarlyStrtPeriod)
- Optionally: occupancy BI enabled, optimal start enabled, schedule
- Optionally: operational VAV heating setpoint
Inputs
The inputs include the following items:
- 24 VAC to limit switch safety terminal LIMIT, LIM2, and LIM3
- 24 VAC to gas valve verification terminals on MV, GV2, GV3,4
Outputs
The output for morning warm-up is 24 VAC for heat stages from terminals H1, H2, and H3 heat outputs.